u=[2 1]';
v=[1 0]';

X=[zeros(2,1) u u+v v zeros(2,1)]
plot(X(1,:),X(2,:))
axis([-1 4 -1 2])
axis square
grid on
text(v(1)+0.1,v(2)-0.2,'v')
text(u(1)+0.1,u(2)+0.1,'u')
u_v=u+v;
text(u_v(1)+0.1,u_v(2)+0.1,'u+v')
xlabel('x')
ylabel('y')